Though it seems like yesterday, 'Mighty Morphin Power Rangers' debuted on TV 20 years ago, on Aug. 28, 1993. Feeling old yet? Here's a look at some other popular TV shows of the time. 'Go Go Power Rangers!'

Though it seems like yesterday, 'Mighty Morphin Power Rangers' debuted on TV 20 years ago, on Aug. 28, 1993. Feeling old yet? Here's a look at some other popular TV shows of the time. 'Go Go Power Rangers!'

Tiffani-Amber Thiessen, Mario Lopez, Elizabeth Berkley, Mark-Paul Gosselaar, Lark Voorhies and Dustin Diamond got their start at Bayside High School as Kelly, Slater, Jesse, Zack, Lisa and Screech, and later went on to varying levels of success. The final episode aired in May of 1993, and was followed later that year by the spinoff, “Saved by the Bell: The College Years,” which went off the air in 1994. YouTube: Evolution of the Zack Morris Brick Phone

- The Warner siblings Yakko, Wakko and Dot grabbed the attention of the after-school set with sketch comedy segments peppered with some educational components for good measure. Bonus: Pinky and The Brain, two characters from the “Animaniacs” series, were used in an eponymous spinoff starring the lab rat odd couple. YouTube: Watch the 'Animaniacs' intro.

- Like 'Mighty Morphin Power Rangers,' this was another show featuring a team of teens hell bent on saving the planet — from pollution and a band of eco-villians. Each Planeteer wore a ring which could summon Captain Planet. You know you wanted a Captain Planet ring. Don’t lie. And if watching this show didn’t make you recycle, nothing would. YouTube: Let our Powers Combine!

- The brainchild of Mike Judge that would leave teens across America crying out phrases like, “I am the great cornholio!” debuted in 1993 on MTV to mixed reviews; social conservatives clutched their pearls, Gen-Xers rejoiced. And Judge went on to a successful career of parodying youth culture and, later with the animated series “King of the Hill,” Texan culture. YouTube: 'I am the great cornholio!'

- The sci-fi drama that developed a cult-like following, spun off a series of feature films and made David Duchovny and Gillian Anderson American heartthrobs debuted in September of 1993, and reassured us all (or probed us to nervousness) with the tagline, “The truth is out there.” YouTube: Watch the 'X-Files' intro

- The buttoned-up version of another successful educational science program for kids, “Beakman’s World,” had some staying power — it aired until June of 1998. The Disney program won 19 Daytime Emmy Awards and put the show’s creator, Nye, on the map as a science educator with an accessible, comedic style. He has also become an outspoken critic of creationism, saying that it threatens science and innovation.YouTube: Watch the intro

- Tweens and adults alike were transfixed by Cory’s life trajectory from junior high through adulthood and with his teen-age love affair with Topanga, his girlfriend (and, later, wife) in this series, which was part of ABC’s popular TGIF programming lineup. At its peak “Boy Meets World” drew 11.6 million viewers.